JINGLING 50mm 2" inch Diamond Drill Bit Hole Saw for Glass Tile Ceramic

I used this to cut a hole in my aquarium for a bulkhead. I should have purchased a 60mm as the threads of the bulkhead were a bit to big so I had to go in with a smaller hole saw and open it up some more. My fault, not the fault of the manufacturer. Worked well. Slow speed, lots of water to cool and a jig for the hole were all it took.

I had to drill one hole for my fixture on my recent tile endeavor. Didn't want to spend an arm and a leg and figured this should last for one-go. First - it was cheap, much cheaper than the diamond hole saws at my local store. Second - they didn't even carry them in this size so it was perfect for my job. Third - it performed better than the name brand ones from the store. I've cut holes in tile / concrete on several occasions. Not on a day to day basis but enough to know that this hole saw performed much better than expected. I made a centering jig by using a wood saw on a sheet of plywood and then clamped that over where I wanted to drill but honestly it might not even be needed, it bit right in, no wobbling, no skirting around and drilled clean through the tile and despite more pressure than it needed did not blow out the back side. Very happy with this purchase. I cannot say what long-term life this has but it did fine for my need. Would get a 100% recommendation from me if you just need to drill a couple holes.

I rarely write reviews because I think it is just a tool to drive traffic to the site. Jeff already has all the traffic he needs! But I wanted to reach out to my construction and handy Brothers-in-arms and share my experiences with this thing. I was concerned about this hole saw for two reasons: First of all, when it arrived it looked a little small to go over the toilet flange. I worried that it might need to be a little bigger. Second, we all know that all carbide saws, blades, and hole-saws are not created equal. Although they aren't exactly giving this thing away, it was significantly cheaper than some of the other similarly sized saws. I tried it on large-format porcelain tile and it worked really well! Perfect size (I forgot that hole saws frequently cut larger holes that the diameter of the actual saw blade) for the job of cutting the tile to allow it to go over the toilet flange! One word of advice: when you make your first cut, the saw wants to 'grab' and walk outside the desired area. Hold it firm and steady and you will be fine. And go SLOWLY to score the tile and create a groove which will help contain the saw. Keep the RPM down. The enemy of carbide is HEAT. I had a spray bottle of water handy and would spray the area liberally every couple of seconds. Once I made my first cut (I had to cut four tile corners to complete the hole!), it was much easier to handle. I only have to do two toilet flanges. Therefore, I have no idea how durable it is in the long run. If you do tile every day, I would advise you to keep it COOL with water while you're cutting and it should last a long time. Frankly, the durability is down to how they attached the carbide 'chips' to the metal. To be fair it is hard to imagine a harder material than glazed porcelain tile, and it did a good job and made a very clean cut!

Hunted online at HD and found theirs expensive. Read Amazon reviews and got tips on these cheaper ones, well worth the trouble. Making a template out of 1/8" ply was the best idea. I taped that to my tiles, adjusted to get the proper position (in my case a critical step), poured some cold tap water in my sink and used the slow speed on a powerful cordless drill, frequently dipping the saw blade in the water and used a toothbrush to clean the accummulating gunk from the cutting area, many times until I'd cut away the tile. I cleaned up the saw, dried it, and it looks fine, could make more holes if needed. 57mm isn't something you find in sets, evidently. I needed to make a 50mm hole too, and for that I bought a Tacklife set. That looks better made, at least it looks better, but both did the job.

There was a bit of rust inside the bit on unboxing, though nowhere that affected usage. I got this to drill through 1/2” glass on a 75 gal aquarium and the bit worked well. I actually got the cleanest hole I’ve ever gotten but I think that was more me going super slow (I was cutting around an existing crack and trying to be super gentle). When I say slow I mean literally 60rpm on the drill and. Took me 49 minutes to get through. But it worked and I don’t need to buy a new tank so this $14 bit just saved me $200 and some extra effort of getting a tank. Totally worth it for the price.

Very happy with the performance of this drill bit. I needed a hole for a shower tile job. Did a practice start on a scrap tile and then went for it. Angled bit on tile to start with steady pressure and slower rotation speed. Wet the bit with water as I drilled. Can’t attest to its longevity, but for the price it was perfect!

Follow the starting instructions so the bit doesn't walk and keep the bit clear of debris by spraying it with water constantly or every few seconds so it won't dull. It worked flawlessly for the one 2-1/8" (54mm) hole I needed to make through 3/4" of stucco, which is similar to concrete. Diamond hole saws with pilot (or centering) bits get pretty expensive so I decided to try this and it worked good enough for me. Because you have to start this hole saw at a 45 degree angle your hole will be a little egg-shaped at the beginning, but once you're really going the hole will be a nicely finished circle.

It did what I expected it to do...with cutting teeth to cut much more...

Really can't beat the price, did an awesome job, better than the one I bought for 4x the price.

I had one opportunity to use the product and it worked as advertised. One suggestion I would make is to periodically dip the bit in water to keep it cool and/or to have a helper pour water over the bit while using it.

As advertised.

It worked like a charm on 1/4 inch glass plate. You must cut slowly!